CN211346460U - Boiler waste heat exchange device - Google Patents
Boiler waste heat exchange device Download PDFInfo
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- CN211346460U CN211346460U CN202020887958.8U CN202020887958U CN211346460U CN 211346460 U CN211346460 U CN 211346460U CN 202020887958 U CN202020887958 U CN 202020887958U CN 211346460 U CN211346460 U CN 211346460U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a boiler waste heat exchange device, including the L venturi tube, the spiral leaf, including a motor, an end cap, a controller, and a cover plate, the heat exchange tube, the box of intaking, go out water box and overflow collection box, the L venturi tube comprises vertical portion and horizontal part, the bottom of horizontal part is equipped with the air inlet with flue discharge pipe intercommunication, vertical portion upper portion lateral wall is equipped with the gas vent, be equipped with the spiral leaf in the vertical portion, the spiral leaf is fixed on the output shaft of motor, vertical portion top is equipped with into water box and goes out the water box, it highly is greater than out the water box to intake the box, it all fixes on the output shaft with play water box to intake the box, the heat exchange tube is fixed on the spiral leaf, the end of intaking of heat exchange tube and the bottom intercommunication of the box of intaking, go out the bottom intercommunication of water end and play water box, the box is the annular and. The utility model discloses a rotation spiral leaf promotes the flue gas to flow when carrying out the heat exchange, avoids the fume emission unsmooth.
Description
Technical Field
The utility model relates to a boiler waste heat utilization technical field, in particular to boiler waste heat exchange device.
Background
The boiler can discharge a large amount of flue gases in the heating process, the temperature of the flue gases contains a large amount of heat, and the heat in the recovered flue gases can improve the effective utilization rate of energy. In the existing boiler waste heat exchange device, a large number of heat conducting blades are required to be arranged for improving the heat exchange of waste heat, but the large number of heat conducting blades can cause the abnormal emission of flue gas, so that the filtering combustion is sufficient.
Disclosure of Invention
To the above prior art, the utility model provides a boiler waste heat exchange device promotes the flue gas to flow when carrying out the heat exchange through rotating the spiral leaf, avoids the fume emission not unobstructed, avoids the heat exchange tube to adopt to rotate to connect the problem that arouses liquid to reveal easily simultaneously.
The technical scheme of the invention is realized as follows:
a boiler waste heat exchange device comprises an L-shaped pipe, a spiral blade, a motor, a heat exchange pipe, a water inlet box, a water outlet box and an overflow collecting box, wherein the L-shaped pipe is composed of a vertical part and a horizontal part, the bottom of the horizontal part is provided with an air inlet communicated with a flue discharge pipe, the side wall of the upper part of the vertical part is provided with an air outlet, the spiral blade is arranged in the vertical part and fixed on an output shaft of the motor, the water inlet box and the water outlet box are arranged above the vertical part, the height of the water inlet box is larger than that of the water outlet box, the water inlet box and the water outlet box are both fixed on the output shaft, the heat exchange pipe is fixed on the spiral blade, the water inlet end of the heat exchange pipe is communicated with the bottom of the water inlet box, the water outlet end is communicated with the bottom of the water outlet box, the overflow, the bottom of the overflow collecting box is provided with a first drainage pipe, and the top of the water inlet box is provided with a water inlet pipe.
Further, the motor is arranged below the vertical part, and an output shaft of the motor penetrates through the vertical part.
Furthermore, a support is arranged in the vertical portion, and the output shaft is rotatably connected with the support.
Furthermore, the lateral wall of the overflow collecting box is provided with a second drain pipe, and the inner diameter of the second drain pipe is larger than that of the first drain pipe.
Furthermore, the water outlet box is provided with a conical water distribution plate, the upper edge of the conical water distribution plate is connected with the upper edge of the water outlet box, and the lower edge of the conical water distribution plate is positioned above the overflow collecting box.
Further, the side wall of the overflow collecting box is higher than the lower edge of the conical water distribution plate.
The beneficial effects of the utility model reside in that: the spiral blade is used as a heat conducting sheet to contact with the flue gas for heat exchange, and the flue gas can be promoted to flow while rotating, so that the flue gas is promoted to be discharged. The spiral blades are provided with heat exchange tubes, and when the heat exchange tubes exchange heat with the flue gas, the heat of the spiral blades is also conducted to the heat exchange tubes, so that the heat exchange efficiency of the heat exchange tubes is improved. In the process that the rotating shaft drives the spiral blades to rotate, the water inlet box and the water outlet box are located above the vertical portion and fixed on the output shaft, and the water inlet box and the water outlet box rotate synchronously when the output shaft rotates, so that the water inlet box and the water outlet box are in a static state relative to the heat exchange tube, a rotating connector is not needed to be adopted to be connected with the water inlet box and the water outlet box, and liquid leakage caused by rotating connection is avoided. The inlet tube at the top of the water inlet box drains water to the inlet tube, water in the inlet tube flows into the water outlet box through the heat exchange tube under the action of gravity, the top of the water outlet box is lower than that of the water inlet box, the overflow collecting box is annular and surrounds the lower part of the edge of the water outlet box, and finally the overflow collecting box overflows from the water outlet box.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
Fig. 1 is a schematic view of a cross-sectional structure of a boiler waste heat exchange device according to embodiment 1 of the present invention;
fig. 2 is a schematic view of a cross-sectional structure of a boiler waste heat exchange device according to embodiment 2 of the present invention;
in the figure, 1L-shaped pipe, 2 spiral blades, 3 motor, 4 heat exchange pipes, 5 water inlet box, 6 water outlet box, 7 overflow collecting box, 8 vertical part, 9 horizontal part, 10 air inlet, 11 air outlet, 12 output shaft, 13 first water discharge pipe, 14 water inlet pipe, 15 support, 16 second water discharge pipe and 17 conical water distribution plate.
Detailed Description
In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.
Example 1
Referring to fig. 1, the boiler waste heat exchange device comprises an L-shaped tube 1, a spiral blade 2, a motor 3, a heat exchange tube 4, a water inlet box 5, a water outlet box 6 and an overflow collecting box 7, wherein the L-shaped tube 1 is composed of a vertical part 8 and a horizontal part 9, an air inlet 10 communicated with a flue discharge pipe is arranged at the bottom of the horizontal part 9, an air outlet 11 is arranged on the side wall of the upper part of the vertical part 8, the spiral blade 2 is arranged in the vertical part 8, the spiral blade 2 is fixed on an output shaft 12 of the motor 3, the water inlet box 5 and the water outlet box 6 are arranged above the vertical part 8, the height of the water inlet box 5 is larger than that of the water outlet box 6, the water inlet box 5 and the water outlet box 6 are both fixed on the output shaft 12, the heat exchange tube 4 is fixed on the spiral blade 2, the water inlet end of the heat exchange tube 4 is communicated with the bottom of the water inlet box 5, the overflow collecting box 7 is annular and surrounds the lower part of the edge of the water outlet box 6, a first water discharging pipe 13 is arranged at the bottom of the overflow collecting box 7, and a water inlet pipe 14 is arranged at the top of the water inlet box 5.
The L-shaped pipe 1 is composed of a vertical part 8 and a horizontal part 9, the bottom of the horizontal part 9 is provided with an air inlet 10 communicated with a flue discharge pipe, the horizontal part 9 is communicated with the flue discharge pipe, waste gas generated by boiler combustion enters the vertical part 8 from the horizontal part 9, and the upper side wall of the vertical part 8 is provided with an exhaust port 11 and is finally discharged from the exhaust port 11. Be equipped with in vertical portion 8 spiral leaf 2, spiral leaf 2 is fixed on motor 3's output shaft 12, drives spiral leaf 2 when motor 3 rotates and rotates, and spiral leaf 2 contacts with the flue gas as the conducting strip and carries out the heat transfer, can also promote the flue gas to flow when the pivoted to promote the flue gas exhaust. The spiral blade 2 is provided with the heat exchange tube 4, when the heat exchange tube 4 exchanges heat with flue gas, the heat of the spiral blade 2 is also conducted to the heat exchange tube 4, so that the heat exchange efficiency of the heat exchange tube 4 is improved. The water inlet end of the heat exchange tube 4 is communicated with the bottom of the water inlet box 5, the water outlet end is communicated with the bottom of the water outlet box 6, the height of the water inlet box 5 is larger than that of the water outlet box 6, the water inlet tube 14 at the top of the water inlet box 5 discharges water to the water inlet tube 14, the water in the water inlet tube 14 flows into the water outlet box 6 through the heat exchange tube 4 under the action of gravity, the top of the water outlet box 6 is lower than that of the water inlet box 5, the overflow collecting box 7 is annular and surrounds the lower part of the edge of the water outlet box 6, and finally the water overflows into the overflow collecting box 7 from the water outlet. The bottom of the overflow collecting box 7 is provided with a first drainage pipe 13, and the water in the overflow collecting box 7 is drained from the first drainage pipe 13. The low-temperature water comes out from the water inlet pipe 14, and finally, the high-temperature water is obtained from the first water discharge pipe 13 after heat exchange, so that the waste heat of the boiler is effectively utilized. In the process that the rotating shaft drives the spiral blade 2 to rotate, the water inlet box 5 and the water outlet box 6 are located above the vertical portion 8 and fixed on the output shaft 12, and the water inlet box 5 and the water outlet box 6 synchronously rotate when the output shaft 12 rotates, so that the water inlet box 5 and the water outlet box 6 are in a static state relative to the heat exchange tube 4, a rotating connector does not need to be adopted to be connected with the water inlet box 5 and the water outlet box 6, and liquid leakage caused by rotating connection is avoided.
Specifically, the motor 3 is disposed below the vertical portion 8, and the output shaft 12 of the motor 3 passes through the vertical portion 8. The motor 3 is located the outside of vertical portion 8, and high temperature flue gas is direct not contacting with motor 3 when passing through, protects motor 3, avoids motor 3's high temperature.
Specifically, a support 15 is arranged in the vertical portion 8, and the output shaft 12 is rotatably connected with the support 15. The output shaft 12 is fixed by the bracket 15, so that the output shaft 12 rotates more stably.
Example 2
Referring to fig. 2, the present embodiment is different from embodiment 1 in that a side wall of the overflow collecting box 7 is provided with a second drain pipe 16, and an inner diameter of the second drain pipe 16 is larger than that of the first drain pipe 13. When water is not discharged from the first water discharge pipe 13 in time, the water level rises, the water is discharged from the second water discharge pipe 16 when the water level rises to reach the position of the second water discharge pipe 16, the water is discharged by utilizing the two water discharge pipes, the water discharge efficiency is improved, the overhigh water level in the overflow collection box 7 is avoided, and the overflow from the overflow collection box 7 after the overflow collection box 7 is submerged is avoided.
Specifically, the water outlet box 6 is provided with a conical water distribution plate 17, the upper edge of the conical water distribution plate 17 is connected with the upper edge of the water outlet box 6, and the lower edge of the conical water distribution plate 17 is located above the overflow collecting box 7. The diameter of the upper edge of the conical water distribution plate 17 is small, the diameter of the lower edge of the conical water distribution plate 17 is large, and water in the water outlet box 6 overflows after rising and flows along the edge of the conical water distribution plate 17, so that the water flows into the overflow collecting box 7, and the water is prevented from flowing along the water outlet box 6.
Specifically, the side wall of the overflow collecting box 7 is higher than the lower edge of the conical water distribution plate 17. The water is separated from the conical water distribution plate 17 and then enters the overflow collecting box 7 immediately, so as to avoid spilling.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A boiler waste heat exchange device is characterized by comprising an L-shaped pipe, a spiral blade, a motor, a heat exchange pipe, a water inlet box, a water outlet box and an overflow collecting box, wherein the L-shaped pipe is composed of a vertical part and a horizontal part, the bottom of the horizontal part is provided with an air inlet communicated with a flue discharge pipe, the side wall of the upper part of the vertical part is provided with an air outlet, the spiral blade is arranged in the vertical part and fixed on an output shaft of the motor, the water inlet box and the water outlet box are arranged above the vertical part, the height of the water inlet box is larger than that of the water outlet box, the water inlet box and the water outlet box are both fixed on the output shaft, the heat exchange pipe is fixed on the spiral blade, the water inlet end of the heat exchange pipe is communicated with the bottom of the water inlet box, the water outlet end is communicated with the bottom of the water outlet box, the overflow collecting, the bottom of the overflow collecting box is provided with a first drainage pipe, and the top of the water inlet box is provided with a water inlet pipe.
2. The heat exchanging apparatus for waste heat of a boiler as recited in claim 1, wherein said motor is disposed below said vertical portion, and an output shaft of said motor passes through said vertical portion.
3. The heat exchange device using the waste heat of the boiler as recited in claim 1, wherein a bracket is disposed in the vertical portion, and the output shaft is rotatably connected to the bracket.
4. The heat exchanging apparatus for waste heat of a boiler as recited in claim 1, wherein a second drain pipe is provided at a sidewall of said overflow collecting box, and an inner diameter of said second drain pipe is larger than an inner diameter of said first drain pipe.
5. The boiler waste heat exchange device according to claim 1, wherein the water outlet box is provided with a conical water distribution plate, the upper edge of the conical water distribution plate is connected with the upper edge of the water outlet box, and the lower edge of the conical water distribution plate is located above the overflow collecting box.
6. The boiler waste heat exchange device according to claim 5, wherein the side wall of the overflow collecting box is higher than the lower edge of the tapered water distribution plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020887958.8U CN211346460U (en) | 2020-05-22 | 2020-05-22 | Boiler waste heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020887958.8U CN211346460U (en) | 2020-05-22 | 2020-05-22 | Boiler waste heat exchange device |
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| CN211346460U true CN211346460U (en) | 2020-08-25 |
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| CN202020887958.8U Active CN211346460U (en) | 2020-05-22 | 2020-05-22 | Boiler waste heat exchange device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659393A (en) * | 2022-03-23 | 2022-06-24 | 江苏庆峰工程集团有限公司 | Heat exchange system |
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2020
- 2020-05-22 CN CN202020887958.8U patent/CN211346460U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659393A (en) * | 2022-03-23 | 2022-06-24 | 江苏庆峰工程集团有限公司 | Heat exchange system |
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